Gas-producer.



w. B. GEAPMAN.

GAS rnonucnn.

APPLICATION FILED AUG. 6. 190B.

Patented June 20, 1911.

' 2 SHEETS-SHEET 1.

umnuty 1 Hill.

[DWIHIIIII W. B. CHAPMAN.

GAS PBGDUGEB.

LPILIOATIOI FILED AUG. 5, 190B.

' Patented June 20, 1911' 2 SHEETS'iKEET 8.

1 rromver WILLiAM 1a. CHAPMAN, or

BROOKLYN, NEW YORK, ASSIGNOR T WALTER B. HOPPING, TRUSTEE, OF NEW YQRK,N. Y.

GAS-PRODUCER.

Specification of Letters Patent. Patented June 20, 1911,

Application filed August 5, 1908. Serial No. 447,048.

. To all whom it may concern:

Be it known that 1, WILLIAM B. CHAP- MAN, of Brooklyn, county of Kings,State of New York, have invented certain new and useful Im rovements inGas-Producers, of which the ollowin is a full, clear, and exactspecification, suc as,will enable others skilled in the art to which itappertains to set forth hereinafter arid particularly pointedout in theclaims.

Reference is had to the accompanying drawings, which illustrate as anexample .one manner of practically. embodying my invention, in whichdrawings,

Figure 1 is a vertical section of the aparatus; Fig. 2 is-a sectionalIan on the inc 22 of Fig. 1; and Fig. 3 is a vertical section showingthe upper partof another form of the device.

Referring to Figs. 1 and 2 the producer is there shown as constructed ofa metal shell 10 with abrick or other non-conducting lining 11. Theshell of the' producer is constructc the intermediate second section '14revoluble, the third section 15 stationary and the bottorn section 16revoluble. The stationary sections are suitably supported on the floor17 by stanchions 18 from which brackets 19 proiect to'and are fastenedon the stationary sect ons." The producer has an air inlet 20 at'thebottom and a as outlet 21 ,passing through the walls 05 the top section12 immediately below the l charging floor 22. Said top section carries acoal hopper 23 with a suitable feed spout or other means 24.

The hopper tapers downward into the body of the producer and terminatesin a Waterof four sections 12, 14, 15 and 16 of whic the top section 12is stationary,

The track 28 runs on rollers 29 carried by brackets 30 projecting fromthe stanchions 18 and in this manner the rotating member 14 is supportedwith a suitable clearance between the sections 12 and 15 so that it marevolve without friction. With the gear 2 a pinion 31 meshes whichpinion is fast on. a rotating vertical shaft 32 carried, for example. ina bearing 33 attached to the sec-' tion 12 at the top end of the shaftand in a step bearing 34 arranged in a-pit 35 constructed below the baseline of the roducer. For. imparting motion to said she t I" have shown aworm wheel 36 together with a worm 37 connected with a suitable sourceof power. At the lower edge of the top section 12 an annular skirt 38 isarranged which projects downward into the water cup 26 and this cupbeing filled'with water, a seal is formed which prevents the escape ofgas between the sections at this point. The r0- tating section 14 alsocarries a downwardly projecting skirt 39 which dips into a cup 40attached tq the stationary section 11, forming a waterseal between thebottom of the section 14 and the top of the section 11. The coal fromthe hopper 23 ravitates through the throat ring 25 and lies in the bodyof the producer witha conical top surface which ifnndisturbed wouldassume the, normal angle of repose. The coal, however, is-leveled outand spread uniformly over the fire by means of a coal spreader 41. This.coal spreader is in the form of an iron pipe and its ends are passedthrough the walls'of out so that water may be circulated through it tocool the same and reventits destruc' tion by the fire. From .t 1e middleor center u of the goal spreader a. pipe or tubularshaft 45 passesupward, this pipe being securely attached to thecoal spreader to rotatethere with and extending centrally throughthe hopper and through astuffing box or other seal 46,.so that steam generated within the..

hol lowwnoal spreader 41 may escape from the producer without minglingwitlrlthe as" en erated therein. The pipe 45 serves t e, urt-herfunction of supportin the coal agitator 47. This, as is shown in curvedand has a pipe in proximity to the tapering bottom of t. e hop- 1g. 2,is reversely. hub attached to-the pipe45 at a point within the hopperand extendsjupfward, from opposite si es of the per so that upon therotation of the section jects down into the water one 48 to form a waterseal at the lower end or the. section 15. Said casing has at its'innerside an annular sheet metal wall 55 forming the inner wall of the cup 48and at the lower edge of the casing a tapering sheet metal skirt 56 issecured, the same projecting downward and tapering inward to a pointconsiderably be low the upper edge of the ash pan 57. -Said skirt 56forms part of the section 16 and re volves therewith and it carries anumber of stanohions 58 projecting upward-within the section 15 and alsorotating with the section 16. To the upper ends of these stanchions arir, 59 is joined and this ring supports the med ash plows 60. Of theseplows there preferably four'a'nd the same have the cross sectional formindicated in Fig. 1 so that they will exert an upstroking action in theash bed just below the incandescent'or fire zone and agitate the samethrough the medium of the upper part of the ash bed for the purpose ofpreventing the formation of blow holes in the fire and insuring acompaot body f-incandescent coal. By agitatlng the fire-,through themedium of the plows described the formation of large clinlrers isavoided due to the thorough and continued breaking upjof the moltenmatter of which the clinkers are formed. At their innerends centrally inthe producer the plows 60 .upport ahead 61, the top surface of which ispyramidal in form and which hood rotates with the section '16. The hoodcovers the open upper end of the stationary blast nozzle and clinkercrusher 62 This is mounted in the bottom'of the ash pan and is of squareor other angular cross sectional form with the result that-the ash bodyinclosed in the skirt 56 and rotating with the same will be continuallythrust against the angular nozzle v62 serving to crush or break. up theclinkers in the ash body and facilitatin the removal of the ashes fromthe pan. The mid 61 in rotating with the plows 60 exerts an agitatingaction on the ash bed similar to that of the plows themselves. 1 Thenozzle 62 communicates wit the pipe line20 supplying the air blast w ichair blast passes out the open upper end'of the nozzle under the hood andupward into the fireQ Water is supplied to the varioir ii water seal.cups and to the ash pan in any desired manner and it may be arranged toflow constantl overflowing from one cu into the ot ier and finallyreaching the-as pan which it fills for thepurpose of forming a waterseal through -'which the ash may be removed without coal 5: xoat of thehopper. station 14 causes the spreader 41 to sweep over the top of thefuel bed-and level out the coal as fast'a-s .fed from the hopper, thelevel of the fuel being "kept approximately at the elevation of thespreader. The sec- 16, however, causes a bodily rotation c2. the lowerpart of the ash bed grinding the same against the angular nozzle 61which breaks or crushes the clinkers and allows the ready, removal ofthe ashes. Also, by the operation of the plows 60, the top part of theash bed is given an upward agita'tion which is communicatedthroughtheashes to the incandescent coal, packing the 7 same andinsuring a uniform fire as explained. In connection with thisarrangementit is important to note the location of the plows within thestationary section 15 and the rotation ofsuchplowsthrough the medium ofthe section 16. This is an important feature of the invention and is onewhich has never been heretofore attempted. The ash is gradually settledtothe bottom of the pan and, owing to the tapering form of the nozzle62, it is, by the rotation of the section 16', slowly worked out to theedge portion of the pan and may there be readily removed by an attendantshoveling outthe ash. The air is either drawn or' forced in'through thenozzle 62 according as to whether the producer is operated on thesuction or passes upward t rough theinca'ndesccnt coal 4 and afterundergoing the usual reactions with the fuel, isformed, with thfuel,into gas which is finally. carried otf'th'rough the conduit21. 1 1 Themodification shown'in Fig; 3 involves a somewhat simplified constructionin that it omits the charging hopper, agitator arms a'nd'coal spreaderforming part of the struc-' ture shown in Figs; 1 and 2, and by reasonof the omission of the coal s reader, the per rotating section of t e 1producer 1s made sufficiently deep to bring about an pressure principle'The air.

actual rotation of the fuel bed in the man-- ner set forth in my (:0ending application,

Serial No. 353,882, file January 24, 1907.

. Otherwise the structure is practically the same as in Figs. 1 and 2.In Fig. 3 the prodimer is provided with a watercooled'top 63 having acharging hopper 64 and bell 65 as is commonly emp oyed in blastfurnaces.

Various other modifications may be resorted to without departing from myinven- 2. A gas producer having a stationary producer section adapted tocarry-the inc'andescent fuel,.a tapering section below the same adaptedto carry the ashes, means for imparting arotation to the taperingsection, an ash pan closing th lower end thereof, an agitator containedithin the upper section and means extending between the lower sectionand the agitator to connect the agi-. tator with the lower section,whereby the agitator is revolubly driven.

3. A gas producer having two stationary sections, with amovable'se'ction interposed between them, a hopper carried by the topstationary section and a coal spreader attached to the rotatable sectionand adapted to move through the top of the coal bed to level off thesame, and an agitator located within-the hopper and also havingconnection with'the rotatable section to be driven thereby. V

4. A gas producer having a rotatable section in proximity to the top ofthe coal bed, a coal spreader carried by said rotatable .section and ahopper above the rotatable section, an agitator in the hopper and meansfor connecting the agitator with the coal spreader tooperatetheagitator.

5. A gas producer having a charging hopper,- anagitator in the same anda rotating producer section below the hopper forming a part of theexterior wall of the producer andhaving connection with the agitator'. Ii

6. A gas producer having a rotating section, a water-cooled agitatingmember extending across the same from side to side.

and means for withdrawing the steam vapor from said agitating member tothe exterior of the producer, such means comprising an outlet piperising centrally from the agitating membcr and passing out through thetop of the producer. 7

7. A gas producer having a narrow rotating section at or near the toplevel of the fuel and an agitator attached to and extendin'g'across thesame from side to side for the purpose specified, a feeding means-abovethe agitator, an agitator for the feeding means and a connection betweenthe two agitators.

8. A gas producer having relatively movable sections, a water sea devicebetween them, a hollow agitator carried by one of said sections andcommunicatin with the water seal for the purpose speci led, a feedingmeans above the agitator, an agitator for the feeding means and aconnection between the two agitators.

9. A gasproducer having a body portion, a rotary section below itadapted to impart a rotary motion to the ashes, an ash pan below saidsection and a clinker crusher rising from the bottom of the ash pan.

10. A gas producer having a body portion,

a rotary section below it adapted toimpart.

a rotary motion to the ashes, an ash pan below said section and aclinker crusher rising from the bottom of the ash pan, saidcrushertapering from the base upward and being non-circular incross-section.

13. A gas producer having a body portion,

a rotating section below it adapted to imparta rotary motion to theashes, an agitator carried by said section, an ash pan below saidsection and a clinker crusher rising from the bottom of the ash pan intoprox imity to said agitator.

14. A gas producer having a body portion, a rotary section below itadapted to impart a rotary motion to the ashes, an ash pan below saidsection and a clinker crusher rising from the-bottom of the ash pan,said clinker crusher serving as a gas conduit.

15. A gas producer having a body portion, a

a rotating section below it adapted to impart a rotarymotion to theashes, an agitator carried by said section, an ash pan below saidsection and a clinker crusher rising from the bottom of the ash panintoproximity to said agitator, said crusher serving as a gas conduitand said agitator serving to prevent the admission of ashes tosaidcondult;

16. A gas producer having a body portion, a rotating section below it, amovable section below it adaptid to impart a bodily movement of theashes in respect to the fuel within said body portion, an ash pan belowthe said rotary section and closipg the lower end thereof and a clicrusher extcndinr' upwardly from said mix pan into said movable section.

orn an ash.

a nd a clinker crusher extcndin up pan in'l'osaid noi non and anagitator carried by Sttitl movaole on and extend ing into proximity to sI t. miter crusher.

18. A gas producer hev a body portion, a. rotating Section below it, emovable section below it adapted to impart bodily movement to the asheswt to the :tucl within said body por... I pan below the said rotarysection and elo. n. t 1e lower end thereof and u clinker crusher ending:upwardly from said ash pan into said movable section, said crusher beingnon-circular in cross-section and serving as a. gas conduit and saidagitator having a portion serving as e cap forrthe upper end of saidclinker crusher.

l9. A= gas producer having an exterior wall portion adapted to containthe meandcscentfuel, a rotatable lower section adapt.

the ashes, a sta-nonery ash pan cticn -.e ash pan carried oy sand rotaedto car" pendent of table lower section and projecting upwardly into abody section above the some.

20. A gas producer having a body portion including a movable section, a,hopper carried above said body portion, coal spreader attached to saidrotatable section and adapted to move through the top of the coal bed tolevel off the same and an agitator located within the hopper and havingconnection with said rotatable section to be driven thereby. v

21. A producer having a. rotating section, a water cooled agitatingmember extending across the same from side to side,

and means for withdrawing the steam vapor to the exteriorof'the'producer, such means conrprising an outlet pipe connected to saidagitatingmember intermediate the ends of the latter. I r

A gas producer having" an upper stationary 1011; means for facing coalthere to u rctury well sect-1m on and closl an agitator imlc-v accessary section and having its lower end of sm eller diameter than its upperend, an agitator carried by said rotary wall section,-a stationary ashpan and a combined nozzle clinker crusher extending upwardly from saidrotary well section.

3. 4 gas producer having an upper stay section, means for feeding fuelthereto, a rotary wall section below the same, a second rotary sectionbelow the first-mentioned rotary section and having its lower end ofsmaller diameter than its upper end, an agitator carried by saidlast-mentioned rotary section and a stationary ash pan below saidlast-mentioned rotary section anda combined nozzle and clinker crushereXtending upwardly from said ash pan into said rotary section;

24:. A gasproducer having two annular superimposed sections each formingan exterior wall of the body of the producer of which sections the loweris open at the bottom and rotatable, an agitating means carried by thelower section and projecting upward into the upper or stationary sectionand 21 stationary ash pan below said lower section.

25. A gas producer having two annular superimposed sections each formingan exterior wall. of the body of the producer of which sections thelowerds open at the bottom and an agitating means carried by the lowersection and projecting into the upper or'stationary section, suchagitating means comprising'a plow or plows extending across theproducer, anda, stationary ash pan below said lower section.

26. A gas producerhaving'two superlmposed sect-ions each forming anexterior wall of the body of the producer of which sections the lower isrotatable, an agitating means carried by the lower sections andprojecting into the upper or stationary section, such agitating meanscomprising a plow or plows extending across the producer and having aninclined upper side to stroke upward on the material in the producer.

In testimony whereof I have signed my name to this specification in thepresenceof two subscribing witnesses.

VVILLTAM B. CHAPMAN.

Witiusses lslmo B. Owit-ns, E. I. llloLAoer-rnm.

